Jewelry sizing can be tricky because some items like rings and similarly, bracelets, need a fairly precise fit and others are a little more simple but there are definitely some key things to note to help you choose the right size for your new jewelry. Firstly, measure! This is the single most important step for choosing the best size jewelry. You should measure your fingers circumference in millimeters and your neck and wrist circumference in centimeters or inches. For rings we use US sizing and necklaces and bracelets we advertise them as the length they are from clasp to clasp. Check out our sizing guide for photo examples and video instructions and a ring size conversion chart for matching up your finger size to the ring size.